CN108224240A - Down straight aphototropism mode set and display device - Google Patents
Down straight aphototropism mode set and display device Download PDFInfo
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- CN108224240A CN108224240A CN201810032222.XA CN201810032222A CN108224240A CN 108224240 A CN108224240 A CN 108224240A CN 201810032222 A CN201810032222 A CN 201810032222A CN 108224240 A CN108224240 A CN 108224240A
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- light
- guide plate
- light guide
- down straight
- mode set
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
- F21S8/00—Lighting devices intended for fixed installation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V5/00—Refractors for light sources
- F21V5/08—Refractors for light sources producing an asymmetric light distribution
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V7/00—Reflectors for light sources
- F21V7/04—Optical design
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
- F21Y2115/15—Organic light-emitting diodes [OLED]
Abstract
The present invention relates to a kind of down straight aphototropism mode set and display devices, are related to backlight technology field, mainly solving the technical problems that the thickness of existing down straight aphototropism mode set is thicker.The technical solution mainly used for：Down straight aphototropism mode set, including：Light guide plate；Luminous component is set to the first surface side of the light guide plate；Light ray reflection structure is set to the second surface side of the light guide plate, and light ray reflection structure is configured to：The light of the luminous component transmitting is projected through the relatively described first surface of the light ray reflection structure reflective surface with being greater than or equal to the angle of total reflection of the light guide plate.Light through the outgoing of light guide plate second surface irradiates diffusion barrier, and the light of reflection can be made laterally to be dissipated to light guide plate.Relative to the prior art, during using identical luminous component, the thickness of light guide plate can be reduced, can realize the uniformly light-emitting of diffusion barrier, the thickness of down straight aphototropism mode set can be reduced, it is easy to accomplish the ultrathin of display device.
Description
Technical field
The present invention relates to backlight technology field, more particularly to a kind of down straight aphototropism mode set and display device.
Background technology
Since LED light emitting diodes (Light Emitting Diode) backlight module has, brightness is high, excitation purity is high, the longevity
Life length, good reliability, nothing show a variety of advantages such as pollution, gradually increase in the proportion that backlight module occupies.
It is divided according to optical texture, LED backlight module is divided into two kinds of straight-down negative and side entering type.Side entering type is to place light source
In the side of backlight module light-emitting surface.And straight-down negative is that light source is placed on the downside of backlight module light-emitting surface, LED illumination diffusion
Piece is shone by diffusion sheet, needs have certain spacing distance D between LED and the diffusion sheet closed on, in order to reduce into
This, has larger spacing distance P, in order to meet diffusion sheet uniform luminous technics requirement needs D/P between adjacent two LED
More than 1.2.By taking 82 cun of display panels as an example, the distance between two LED of design P are 2.2cm, are calculated by technological requirement formula
Understand, it is desirable that LED and the diffusion sheet that closes between spacing distance P need to be more than 2.2x1.2=2.64cm, cause as a result,
Display panel product is thicker, it is difficult to meet user's requirement ultra-thin to product.
Invention content
In view of this, the present invention provides a kind of down straight aphototropism mode set and display device, mainly solving the technical problems that
The thickness of existing down straight aphototropism mode set is thicker, it is difficult to meet the ultra-thin demand of display panel.
In order to achieve the above objectives, present invention generally provides following technical solutions：
On the one hand, the embodiment of the present invention provides a kind of down straight aphototropism mode set, including：
Light guide plate, including opposite first surface and second surface；
Luminous component is set to the first surface side of the light guide plate；
Light ray reflection structure, is set to the second surface side of the light guide plate, and light ray reflection structure is configured to：The hair
The light of light component transmitting is described to be greater than or equal to through the relatively described first surface of the light ray reflection structure reflective surface
The angle of total reflection of light guide plate projects.
The object of the invention to solve the technical problems also can be used following technical measures and further realize.
Optionally, aforementioned down straight aphototropism mode set, wherein the light ray reflection structure reflecting surface includes N number of echo area
Domain；
The luminous component shines towards N number of reflector space, and the luminous component is towards N number of reflector space
The angle of the relatively described first surface normal direction of light emission direction is different, and N is the positive integer more than or equal to 2.Optionally, it is aforementioned it is straight under
Formula backlight module, wherein N number of reflector space is distributed in bar shaped.
Optionally, aforementioned down straight aphototropism mode set, wherein N number of reflector space is distributed in a ring.
Optionally, aforementioned down straight aphototropism mode set, wherein the light ray reflection structure is balzed grating,；
In N number of reflector space of the balzed grating, groove width d, the blaze angle γ of x-th of reflector space meet：2dsinγ
=k λ；Wherein, i is the light and the second table of light guide plate that luminous component emit towards x-th of reflector space
The normal angles in face, θ are that the light of luminous component transmitting reflects relatively described first surface normal direction through x-th of reflector space
Angle, d are the width of single grating in reflector space, and x is the positive integer for being less than or equal to N more than or equal to 1, and λ is the illumination region
The wavelength that part shines, k=0 or ± 1 or ± 2 ....
Optionally, aforementioned down straight aphototropism mode set, wherein the luminous component is multiple, the balzed grating, is more
A, multiple luminous components are opposite with the position of multiple balzed grating,s respectively.
Optionally, aforementioned down straight aphototropism mode set, plurality of balzed grating, is identical with multiple site materials, alternately divides
Cloth forms the first film layer structure.
Optionally, aforementioned down straight aphototropism mode set, wherein the luminous component is embedded in the first surface of the light guide plate；
Or
The luminous component is located at outside the first surface of the light guide plate.
Optionally, aforementioned down straight aphototropism mode set, plurality of balzed grating, and multiple first transmission regions alternately divide
Cloth forms the second film layer structure；
Multiple sites and multiple second transmission regions are alternately distributed to form third membrane layer structure, and third membrane layer structure is located at institute
It states between light guide plate and the luminous component.
Optionally, aforementioned down straight aphototropism mode set, wherein the light of luminous component transmitting is respectively through described N number of anti-
The region relatively described first surface normal direction of reflection is penetrated to project with roughly the same angle, it is maximum in the light of the roughly the same angle
Light angle difference is in 0-5 degree.
Optionally, aforementioned down straight aphototropism mode set, wherein the light that the luminous component emits into the light guide plate
Relatively described first surface normal direction is with light ray reflection structure described in first angle directive, and the light is through the light ray reflection structure
The relatively described first surface normal direction of reflective surface is projected with second angle, and the second angle is more than the first angle.
Optionally, aforementioned down straight aphototropism mode set, wherein further including：
Diffusion barrier is set to the second surface side of the light guide plate, for what is projected to the light guide plate second surface
Light is diffused；
Reflecting plate is set to the first surface side of the light guide plate, for what is projected to the light guide plate first surface
Light is reflected.
On the other hand, the embodiment of the present invention provides a kind of display device, which is characterized in that including：
Above-mentioned down straight aphototropism mode set.
By above-mentioned technical proposal, down straight aphototropism mode set and display device that technical solution of the present invention provides at least have
Following advantages：
In technical solution provided in an embodiment of the present invention, luminous component is set in the first surface side of light guide plate, in leaded light
The second surface side setting light ray reflection structure of plate, the light of luminous component transmitting is through the light ray reflection structure reflective surface
Relatively described first surface is projected with being greater than or equal to the angle of total reflection of the light guide plate, the light being emitted through light guide plate second surface
Line irradiates diffusion barrier, and the light of reflection can be made laterally to be dissipated to light guide plate.Relative to the prior art, using identical luminous component
When, the thickness of light guide plate can be reduced, can realize the uniformly light-emitting of diffusion barrier, the thickness of down straight aphototropism mode set can be reduced, easily
In the ultrathin for realizing display device.
Above description is only the general introduction of technical solution of the present invention, in order to better understand the technological means of the present invention,
And can be implemented in accordance with the contents of the specification, below with presently preferred embodiments of the present invention and after attached drawing is coordinated to be described in detail such as.
Description of the drawings
By reading the detailed description of hereafter preferred embodiment, it is various other the advantages of and benefit it is common for this field
Technical staff will become clear.Attached drawing is only used for showing the purpose of preferred embodiment, and is not considered as to the present invention
Limitation.And throughout the drawings, the same reference numbers will be used to refer to the same parts.In the accompanying drawings：
Fig. 1 is the structure diagram for some embodiment down straight aphototropism mode sets that the embodiment of the present invention provides；
Fig. 2 is the optical grating construction signal for the specific down straight aphototropism mode set of some embodiments that the embodiment of the present invention provides
Figure；
Fig. 3 is the grating light path schematic diagram for some embodiment down straight aphototropism mode sets that the embodiment of the present invention provides；
Fig. 4 is the circular grating structural representation for some embodiment down straight aphototropism mode sets that the embodiment of the present invention provides
Figure；
Fig. 5 is the structure diagram for some embodiment down straight aphototropism mode sets that the embodiment of the present invention provides；
Fig. 6 is the structure diagram for some embodiment down straight aphototropism mode sets that the embodiment of the present invention provides；
Fig. 7 is the structure diagram for some embodiment down straight aphototropism mode sets that the embodiment of the present invention provides.
Specific embodiment
The technological means and effect taken further to illustrate the present invention to reach predetermined goal of the invention, below in conjunction with
Attached drawing and preferred embodiment, to propose according to the present invention down straight aphototropism mode set and display device its specific embodiment, knot
Structure, feature and its effect are described in detail as after.In the following description, what different " embodiment " or " embodiment " referred to differs
Surely it is the same embodiment.In addition, the special characteristic, structure or feature in one or more embodiments can be by any suitable form groups
It closes.
A kind of down straight aphototropism mode set provided in this embodiment, the both sides of light guide plate are respectively arranged with luminous component and light
Catoptric arrangement, luminous component transmitting light through the light ray reflection structure reflective surface can relatively described first surface with big
In or equal to the light guide plate the angle of total reflection project, the light in light guide plate is made to tend to laterally dissipate, light guide plate can be reduced
Thickness can realize the diffusion barrier uniformly light-emitting of down straight aphototropism mode set.
Fig. 1 is one embodiment of down straight aphototropism mode set provided by the invention, referring to Fig. 1, one embodiment of the present of invention
The down straight aphototropism mode set of proposition, including：Light guide plate 10, luminous component 20 and light ray reflection structure 30.
Light guide plate 10 includes opposite first surface 10a and second surface 10b；Luminous component 20 is set to the leaded light
The first surface 10a sides of plate 10；Light ray reflection structure 30 is set to the second surface 10b sides of the light guide plate 10, light
Catoptric arrangement 30 is configured to：The light that luminous component 20 emits is through 30 reflective surface of light ray reflection structure relatively described the
For one surface 10a to be greater than or equal to the injection of the angle of total reflection of the light guide plate 10, n is the refractive index of light guide plate.With air refraction
Rate is 1, and light guide plate refractive index is calculated for n, and angle of reflection is arcsin (1/n).
Luminous component is set in the first surface side of light guide plate, setting light reflects knot in the second surface side of light guide plate
Structure, the light of luminous component transmitting is through the relatively described first surface of the light ray reflection structure reflective surface to be greater than or equal to
The angle of total reflection of the light guide plate projects, and the light through the outgoing of light guide plate second surface irradiates diffusion barrier, can make the light of reflection
It is laterally dissipated to light guide plate.Relative to the prior art, during using identical luminous component, the thickness of light guide plate can be reduced,
It realizes the uniformly light-emitting of diffusion barrier, the thickness of down straight aphototropism mode set can be reduced, it is easy to accomplish the ultrathin of display device.
Light ray reflection structure is to the light of light guide plate first surface normal direction first angle directive light ray reflection structure with leaded light
The larger second angle of plate first surface normal direction projects, and the light in light guide plate is made to tend to laterally dissipate, can reduce light guide plate
Thickness can realize the diffusion barrier uniformly light-emitting of down straight aphototropism mode set.When the luminous component 20 is into the light guide plate 10
The relatively described first surface 10a normal direction of the light of transmitting is with light ray reflection structure 30 described in first angle directive, the light warp
The light ray reflection structure 30 is reflected relatively described first surface 10a normal direction and is projected with second angle, and the second angle is more than
The first angle, the second angle are more than or equal to the angle of total reflection of the light guide plate 10, and the angle of total reflection is, for example, arcsin
(1/n), n are the refractive index of light guide plate, and 1 is air refraction.
Luminous component is set in the first surface side of light guide plate, setting light reflects knot in the second surface side of light guide plate
Structure, when the light that luminous component emits into light guide plate with respect to first surface normal direction with first angle directive light ray reflection structure,
Light is reflected opposite first surface normal direction through light ray reflection structure and is projected with second angle, the light being emitted through light guide plate second surface
Line irradiates diffusion barrier, and second angle is more than first angle, and second angle is more than the angle of total reflection of light guide plate, can make the light of reflection
It is laterally dissipated to light guide plate.Relative to the prior art, during using identical luminous component, the thickness of light guide plate can be reduced,
It realizes the uniformly light-emitting of diffusion barrier, the thickness of down straight aphototropism mode set can be reduced.
Light guide plate selects high transmittance material, and light guide plate refractive index is more than surrounding medium refractive index, and light guide plate is usual
Less than 1.0mm.
Luminous component can be point light source, and monochromatic light or polychromatic light, such as white light specifically can be used；Preferably, it sends out
Light component can be monochromatic LED point light source, such as OLED, LED, micro LED etc., LED point light source half-peak breadth ＜ 50nm, size be small
It is preferred to select micro LED preferable in 2mm.
Luminous component can be multiple, and multiple luminous component compartment of terrain are distributed in the first surface side of light guide plate, corresponding
, light ray reflection structure can be multiple, and multiple light ray reflection structures are opposite one by one with the position of multiple luminous components respectively.
It is common, reflecting plate is provided in light guide plate first surface side, reflecting plate is used for first table of light guide plate
The light that face is projected is reflected；Diffusion barrier is provided in light guide plate second surface side, diffusion barrier is used for the light guide plate
The light that second surface projects is diffused.Diffusion barrier can (such as poly- carbonic acid vinegar, poly- methacrylate first be cruel by the polymer of light transmission
Or polyethylene terephthalate is cruel etc.) and the film layer that is prepared of the scattering particles (such as titanium dioxide) that adulterate, can also it make
The film layer built up by multilayer film.Light can be scattered, positioned at the observation of scattering film light emission side through diffusion barrier by scattering particles therein
Person can not penetrate the object that scattering film observes inside, such as luminous component, circuit board, can only perceive by diffusion barrier upper table
The Luminance Distribution that face generates.It is common, for the energy further sent out using light source, also usually set in diffusion barrier light emission side
There is at least 1 layer of prism film, prism film is also known as brightness enhancement film (Brightness enhancement films), and prism film is by having point
The layers of prisms and substrate layer of angle micro-prism structure are bonded.Luminous component may be disposed between reflecting plate and light guide plate, guide-lighting
The reflective side of plate is provided with transparent substrate, and luminous component may be disposed on transparent substrate.Certainly, in specific implementation, luminous component
Position it is not limited to this, luminous component can also be embedded in the first surface of light guide plate.
Prism, grating etc., which specifically can be used, in light ray reflection structure has the catoptric arrangement of light reflection function, by rib
Mirror, optical grating construction design are, it can be achieved that when the relatively described first surface of light that the luminous component emits into the light guide plate
Normal direction reflects relatively described first with light ray reflection structure described in first angle directive, the light through the light ray reflection structure
Surface normal is projected with second angle, and the second angle is more than the first angle, and the second angle is more than or equal to described
The angle of total reflection of light guide plate.
Unified structure design integrally can be used in light ray reflection structure, and also separated regions uses different structure designs, can
Realize that the light of different directions incidence for emitting point light source is reflected with substantially parallel light, for example, as shown in Figure 1, light
30 reflecting surface of catoptric arrangement includes N number of reflector space 31；The luminous component 20 shines towards N number of reflector space 31, institute
The angle for the relatively described first surface 10a normal direction of light emission direction for stating luminous component 20 towards N number of reflector space 31 is different,
Such as gradually increase etc., the light that the luminous component 20 emits reflect relatively described the through N number of reflector space 31 respectively
One surface 10a normal direction is projected with roughly the same angle, and N is positive integer more than or equal to 2, maximum in the light of roughly the same angle
Light angle difference is shaped generally as parallel emergent ray in 0-5 degree.Wherein it is possible to understand, the numerical value of N is bigger,
The light of injection then tends to be parallel, is easy to make the down straight aphototropism mode set of collimated light source.Certainly, as alignment direct light does not have
It is required that the light of luminous component transmitting is respectively after reflector space reflection without with substantially parallel light reflection, being likewise supplied with
The characteristics of down straight aphototropism mode set thinner thickness.
The embodiment of the present invention is by taking grating as an example, and ladder phase grating can be used in grating, it is preferred that light ray reflection structure can
Using balzed grating, the light coupling of the N number of reflector space reflection of balzed grating, is injected in light guide plate, can make down straight aphototropism mode set
With very high light efficiency, light efficiency can be more than 90%.The light extraction half-peak breadth of LED point light source is larger, and grating is generally to incident light
Angle changing rate is sensitive, in embodiments of the present invention the N number of reflector space setting of balzed grating, point, at least contain in each region there are one
Grating facet, as shown in Fig. 2, each reflector space C1-Cn is by taking a grating facet as an example, the light-emitting angle of LED point light source
For α, each reflector space only needs to be designed the light of α/n angle, can greatly increase balzed grating, in this way to incidence
The coupling efficiency of light reduces interference light.In order to reduce technological requirement, the number of the grating facet of each reflector space can be more
It is a, using identical parameters structure design.Design parameter design can be found in following specific calculating process：
As shown in figure 3, the light and the second of light guide plate that light x-th of reflector space of direction of luminous component transmitting emits
Surface 10b normal angles are i, the light and balzed grating, slot of x-th of reflector space transmitting of the light direction that luminous component emits
The angle in face is c, and second surface 10b normals and balzed grating, groove face angle are b, and the light is through x-th of reflector space grating
Groove face reflects relatively described first surface normal angles for θ, and the blaze angle of x-th of reflector space is γ, x-th reflector space
Groove width is d, be can be calculated by geometrical relationship：+ b=90 ° of γ, c+b+i=180 °,Thus it pushes over and obtainsAgain by balzed grating, equation 2dsin γ=k λ, k=0, ± 1, ± 2 ..., x is is less than or equal to more than or equal to 1
The positive integer of N, λ are the wavelength that the luminous component shines.Thus different reflector spaces, incidence angles degree i can be calculated
Under, groove width d, the blaze angle γ of balzed grating,.In specific design, for each reflector space, the number of grating facet can be more
A, angle i therein is usually the numerical value of a range, can usually choose any value in wherein range values as i's
Evaluation.It is identical that groove width d, the flare angle γ of different reflector spaces can choose a parameter therein, also can two ginsengs
Number is different.Common, the groove width d that can choose different reflector spaces is identical, and the flare angle γ of different reflector spaces is not
It is identical.Gone out by adjusting blaze angle γ come grating with k diffraction time diffraction, the sudden strain of a muscle of the grating of different reflector spaces
The angle γ that shines is different, different so as to fulfill the diffraction time k of light extraction, and entering angular so as to fulfill difference injects balzed grating, can be with
The effect of roughly the same angle outgoing.Wherein, N number of reflector space is distributed in bar shaped.Alternatively, as shown in figure 4, N number of echo area
Domain is distributed in a ring.
In some embodiments provided by the invention, multiple balzed grating,s are identical with multiple site materials, multiple balzed grating,s
It is alternately distributed to form the first film layer structure with multiple sites.Site and balzed grating, form the first integrated film layer structure, can set
Be placed in same layer, meanwhile, in preparation process, can one-pass molding, it is easy to process, production cost can be reduced.For example, specific real
In applying, as shown in figure 5, prism film 40A, diffusion barrier 50A, fluorescence coating 60A, the first film layer structure 30A, light guide plate 10A, shine
Component 20A, reflecting plate 70A are cascading, and fluorescence coating 60A is used to monochromatic luminous component 20A blending together white light outgoing, fluorescence
Depending on layer 60A is with specific reference to luminous component 20A luminescent colors, for example, luminous component is blue led, yttrium aluminium can be used in fluorescence coating
Garnet YAG fluorescent powder, can also be used quantum dot layer, after the blue light of blue LED emission injects light guide plate, through the first film layer structure
Balzed grating, 31A reflections after, the first surface of light guide plate is reflected towards, after first surface is totally reflected, through the first film layer structure
Site 32A after directive fluorescence coating, be mixed to form white light.For another example, in specific implementation, as shown in fig. 6, prism film 40B, expansion
It dissipates film 50B, the first film layer structure 30B, light guide plate 10B, reflecting plate 60B to be cascading, luminous component 20B is embedded in more tabula rasas
The first surface of 10B, the light of luminous component 20B transmittings reflect guide after the balzed grating, 31B reflections of the first film layer structure
The first surface of tabula rasa 10B, after first surface is totally reflected, the directive diffusion barrier 50B after the site 20B of the first film layer structure.
It is unlike the embodiments above in other embodiments provided by the invention, multiple balzed grating,s and multiple nets
Point layering setting, as shown in fig. 7, multiple balzed grating, 31C and multiple first transmission region 32C are alternately distributed to form the second film layer
Structure 30C；Multiple site 41C and multiple second transmission region 42C are alternately distributed to form third membrane layer structure 40C, third membrane layer
Structure 40C is between the light guide plate 10C and the luminous component 20C.For example, in specific implementation, prism film 50C, diffusion
Film 60C, quantum dot layer 70C, the second film layer structure 30C, light guide plate 10C, third membrane layer structure 40C, luminous component 20C, reflection
Plate 80C is cascading, luminous component 20C towards third membrane layer structure the second transmission region 42C, luminous component transmitting
The light of 20C injects light guide plate 10C by the second transmission region, after the balzed grating, 31C reflections of the second film layer structure 30C,
It is set after reflecting plate 80C by the site 41C of third membrane layer structure 40C, is mixed after reflection with the quantum dot layer 70C light generated
It closes, white light can be mixed to form.
A kind of display device provided in this embodiment, including down straight aphototropism mode set in above-described embodiment, direct-type backlight
The thinner thickness of module is, it can be achieved that the ultrathin of display device.
The display device that one embodiment of the present of invention proposes, including：Down straight aphototropism mode set, including：Light guide plate shines
Component and light ray reflection structure.
Light guide plate includes opposite first surface and second surface；Luminous component is set to the first table of the light guide plate
Face side；Light ray reflection structure is set to the second surface side of the light guide plate, and light ray reflection structure is configured to：When the hair
The relatively described first surface normal direction of the light that light component emits into the light guide plate is reflected with light described in first angle directive
Structure, the light are reflected relatively described first surface normal direction through the light ray reflection structure and are projected with second angle, and described the
Two angles are more than the first angle, and the second angle is more than or equal to the angle of total reflection arcsin (1/n), n of the light guide plate
Refractive index for light guide plate.
Luminous component is set in the first surface side of light guide plate, setting light reflects knot in the second surface side of light guide plate
Structure, when the light that luminous component emits into light guide plate with respect to first surface normal direction with first angle directive light ray reflection structure,
Light is reflected opposite first surface normal direction through light ray reflection structure and is projected with second angle, the light being emitted through light guide plate second surface
Line irradiates diffusion barrier, and second angle is more than first angle, and second angle is more than the angle of total reflection of light guide plate, can make the light of reflection
It is laterally dissipated to light guide plate.Relative to the prior art, during using identical luminous component, the thickness of light guide plate can be reduced,
It realizes the uniformly light-emitting of diffusion barrier, the thickness of down straight aphototropism mode set can be reduced, so as to be easily achieved the ultrathin of display device.
The downward back that down straight aphototropism mode set described in the present embodiment can be provided directly using above-described embodiment
Optical mode group, concrete implementation structure can be found in the related content described in above-described embodiment, and details are not described herein again.
Above-mentioned display device can be：Display panel, Electronic Paper, mobile phone, tablet computer, television set, display, notebook
Any product or component with display function such as computer, Digital Frame, navigator.
In the above-described embodiments, it all emphasizes particularly on different fields to the description of each embodiment, there is no the portion being described in detail in some embodiment
Point, it may refer to the associated description of other embodiment.
It is understood that the correlated characteristic in above device can be referred to mutually.In addition, in above-described embodiment " the
One ", " second " etc. is for distinguishing each embodiment, and does not represent the quality of each embodiment.
In the specification provided in this place, numerous specific details are set forth.It is to be appreciated, however, that the implementation of the present invention
Example can be put into practice without these specific details.In some instances, well known structure and skill is not been shown in detail
Art, so as not to obscure the understanding of this description.
Similarly, it should be understood that in order to simplify the disclosure and help to understand one or more of each inventive aspect,
Above in the description of exemplary embodiment of the present invention, each feature of the invention is grouped together into single implementation sometimes
In example, figure or descriptions thereof.However, the device of the disclosure should be construed to reflect following intention：I.e. required guarantor
Shield the present invention claims the more features of feature than being expressly recited in each claim.More precisely, as following
Claims reflect as, inventive aspect is all features less than single embodiment disclosed above.Therefore,
Thus the claims for following specific embodiment are expressly incorporated in the specific embodiment, wherein each claim is in itself
Separate embodiments all as the present invention.
Those skilled in the art, which are appreciated that, to carry out adaptively the component in the device in embodiment
Change and they are arranged in one or more devices different from the embodiment.It can be the component combination in embodiment
Into a component and it can be divided into multiple subassemblies in addition.In addition at least some of such feature is mutual
Except repulsion, any combinations may be used to the institute disclosed in this specification (including adjoint claim, abstract and attached drawing)
There are feature and all components of so disclosed any device to be combined.Unless expressly stated otherwise, this specification (including
Adjoint claim, abstract and attached drawing) disclosed in each feature can by provide identical, equivalent or similar purpose substitute it is special
It levies to replace.
In addition, it will be appreciated by those of skill in the art that although some embodiments described herein include other embodiments
In included certain features rather than other feature, but the combination of the feature of different embodiments means in of the invention
Within the scope of and form different embodiments.For example, in the following claims, embodiment claimed is appointed
One of meaning mode can use in any combination.The all parts embodiment of the present invention can with hardware realization or
It is realized with combination thereof.
It should be noted that the present invention will be described rather than limits the invention, and ability for above-described embodiment
Field technique personnel can design alternative embodiment without departing from the scope of the appended claims.In the claims,
Any reference mark between bracket should not be configured to limitations on claims.Word "comprising" does not exclude the presence of not
Component or component listed in the claims.Word "a" or "an" before component or component does not exclude the presence of multiple
Such component or component.The present invention can be realized by means of including the device of several different components.It is several listing
In the claim of component, several in these components can be embodied by same component item.Word first,
Second and the use of third etc. do not indicate that any sequence.These words can be construed to title.
The above described is only a preferred embodiment of the present invention, not make limitation in any form to the present invention, according to
According to any simple modification, equivalent change and modification that the technical spirit of the present invention makees above example, this hair is still fallen within
In the range of bright technical solution.
Claims (13)
1. a kind of down straight aphototropism mode set, which is characterized in that including：
Light guide plate, including opposite first surface and second surface；
Luminous component is set to the first surface side of the light guide plate；
Light ray reflection structure, is set to the second surface side of the light guide plate, and light ray reflection structure is configured to：The illumination region
The relatively described first surface of reflective surface of the light through the light ray reflection structure of part transmitting is to be greater than or equal to described lead
The angle of total reflection of tabula rasa projects.
2. down straight aphototropism mode set according to claim 1, which is characterized in that
The reflecting surface of the light ray reflection structure includes N number of reflector space；
The luminous component shines towards N number of reflector space, and the luminous component shines towards N number of reflector space
The angle of the relatively described first surface normal direction in direction is different, and N is the positive integer more than or equal to 2.
3. down straight aphototropism mode set according to claim 2, which is characterized in that
N number of reflector space is distributed in bar shaped.
4. down straight aphototropism mode set according to claim 2, which is characterized in that
N number of reflector space is distributed in a ring.
5. down straight aphototropism mode set according to claim 2, which is characterized in that
The light ray reflection structure is balzed grating,；
In N number of reflector space of the balzed grating, groove width d, the blaze angle γ of x-th of reflector space meet：2d sin γ=k
λ；Wherein, i is the light and light guide plate second surface that luminous component emit towards x-th of reflector space
Normal angles, θ are that the light of luminous component transmitting reflects relatively described first surface normal angle through x-th of reflector space
Degree, d are the width of single grating in reflector space, and x is the positive integer for being less than or equal to N more than or equal to 1, and λ is the luminous component
Luminous wavelength, k=0 or ± 1 or ± 2 ....
6. down straight aphototropism mode set according to claim 5, which is characterized in that
For the luminous component to be multiple, the balzed grating, is multiple, multiple luminous components position with multiple balzed grating,s respectively
It puts opposite.
7. down straight aphototropism mode set according to claim 6, which is characterized in that
Multiple balzed grating,s are identical with multiple site materials, are alternately distributed to form the first film layer structure.
8. down straight aphototropism mode set according to claim 7, which is characterized in that
The luminous component is embedded in the first surface of the light guide plate；Or
The luminous component is located at outside the first surface of the light guide plate.
9. down straight aphototropism mode set according to claim 6, which is characterized in that
Multiple balzed grating,s and multiple first transmission regions are alternately distributed to form the second film layer structure；
Multiple sites and multiple second transmission regions are alternately distributed to form third membrane layer structure, and third membrane layer structure is located at described lead
Between tabula rasa and the luminous component.
10. down straight aphototropism mode set according to claim 2, which is characterized in that
The light of the luminous component transmitting reflects relatively described first surface normal direction with substantially through N number of reflector space respectively
Equal angular projects, and maximum light angle difference is in 0-5 degree in the light of the roughly the same angle.
11. according to the down straight aphototropism mode set any in claim 1-10, which is characterized in that
The relatively described first surface normal direction of the light that the luminous component emits into the light guide plate is with first angle directive institute
Light ray reflection structure is stated, the light is through the relatively described first surface normal direction of the light ray reflection structure reflective surface with second
Angle projects, and the second angle is more than the first angle.
12. according to the down straight aphototropism mode set any in claim 1-11, which is characterized in that further include：
Diffusion barrier is set to the second surface side of the light guide plate, for the light projected to the light guide plate second surface
It is diffused；
Reflecting plate is set to the first surface side of the light guide plate, for the light projected to the light guide plate first surface
It is reflected.
13. a kind of display device, which is characterized in that including：
Any down straight aphototropism mode set in the claims 1-11.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032222.XA CN108224240A (en) | 2018-01-12 | 2018-01-12 | Down straight aphototropism mode set and display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810032222.XA CN108224240A (en) | 2018-01-12 | 2018-01-12 | Down straight aphototropism mode set and display device |
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| CN108224240A true CN108224240A (en) | 2018-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810032222.XA Pending CN108224240A (en) | 2018-01-12 | 2018-01-12 | Down straight aphototropism mode set and display device |
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Application publication date: 20180629 |